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750/760 Feeder Management Relay GE Power Management
12.3 NEUTRAL OVERCURRENT 12 S5 PROTECTION
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12.3.3 NEUTRAL INSTANTANEOUS OVERCURRENT
Neutral instantaneous overcurrent elements 1 and 2 are programmed in this subgroup. They are two identical
protection elements each equivalent to a single ANSI device 50N neutral instantaneous overcurrent relay.
■ NEUTRAL TIME OC 1
■ [ENTER] for more
The Neutral Instantaneous Overcurrent 1 setpoints path is:
\ SETPOINTS \ S5 PROTECTION \ NEUTRAL CURRENT \ NEUTRAL INST OC 1
NEUTRAL INST OC 1
FUNCTION: Disabled
Range: Disabled, Trip, Trip & AR, Alarm, Latched Alarm, Control
Select the required function.
NEUTRAL INST OC 1
RELAYS (3-7): -----
Range: Any Combination of the 3-7 AUXILIARY Relays
Select the output relays required.
NEUTRAL INST OC 1
PICKUP: 1.00 x CT
Range: 0.05 to 20.00 in steps of 0.01 x CT
Enter the pickup in terms of the CT rating. For example, if a pickup of 1000 A is
required, enter
5.0 x CT
with a 200:5 phase CT installed.
NEUTRAL INST OC 1
DELAY: 0.00 s
Range: 0.00 to 600.00 in steps of 0.01 s
Select the delay required.
NEUTRAL INST OC 1
DIRECTION: Disabled
Range: Disabled, Forward, Reverse
Select the direction(s) of current flow for which operation is permitted.
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